Waterproof portable audio device



FIG. 1 is a perspective view of waterproof portable audio device showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left hand side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right hand side view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a front right perspective view thereof. 

The ornamental design for a waterproof portable audio device, as shown and described. 